artery occlusion definition
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Arterial Occlusive Disease Arterial Occlusive Disease. Atheroclerosis, or hardening of the arteries, is caused by the accumulation of a fatty substance called plaque on the inside of the walls of the arteries. This is a condition that affects up to 35% of Americans.
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Retinal vessel occlusion A retinal vessel occlusion is a blockage in the blood vessels of your eye that can cause sight loss. There are two types of retinal blood vessels, arteries and veins, and either of these can be affected by an occlusion. This information describes these two different types of vessel occlusion and their affect on vision.he blood vessels which supply the retina spread across it like a tree. The retinal arteries have a large trunk of a blood vessel that splits into smaller branches to feed all parts of the retina. If the trunk of the tree is blocked then a lot of your sight your will be affected.
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MayoClinic Health Library Renal artery stenosis is the narrowing of one or more arteries that carry blood to your kidneys (renal arteries). Narrowing of the arteries prevents normal amounts of oxygen-rich blood from reaching your kidneys. Your kidneys need adequate blood flow to help filter waste products and remove excess fluids.
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coronary occlusion 1. a term applied to vessels, ligaments, nerves, the band at the skin-hoof junction. 2. blood vessels partially encircling the heart. coronary arteries. two large arteries that branch from the ascending aorta and supply all of the heart muscle with blood.See also Table 9.ncircling in the manner of a crown; said of anatomical structures such as vessels, ligaments, or nerves. coronary arteries two large arteries that branch from the ascending aorta and supply all of the heart muscle with blood (see also table of arteries).
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- Artery occlusion greater than 70% usually requires a surgical procedure in which an incision is made into the neck, the artery exposed, and the obstruction removed (carotid endarterectomy). Controversy exists among researchers on how to approach asymptomatic occlusions in some patients.
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- Retinal vessel occlusion. A retinal vessel occlusion is a blockage in the blood vessels of your eye that can cause sight loss. There are two types of retinal blood vessels, arteries and veins, and either of these can be affected by an occlusion. This information describes these two different types of vessel occlusion and their affect on vision.
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Eye Strokes: CRAO, BRVO And Other Retinal Artery And Vein Occlusions Central retinal vein occlusion (CRVO) causes sudden, painless vision loss that can be mild to severe. Most people will have high blood pressure, chronic open-angle glaucoma and/or significant hardening of the arteries. For eye occlusion, you may receive ocular massage or glaucoma medications to lower eye pressure.
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- Central Retinal Artery Occlusion. When one of the vessels that carries blood to your eye's retina gets blocked, it can cause painless, but usually sudden, vision loss in one eye. Doctors call this a central retinal artery occlusion (CRAO).Click Image to Enlarge. Your retina is the layer of nerves at the back of your inner eye that sense light.Like a tiny video camera, your retina transforms images into electrical signals that your optic nerve carries to your brain. If an occlusion, or blockage of a blood vessel, occurs in your retina, it can be quite serious.octors call this a central retinal artery occlusion (CRAO). Click Image to Enlarge. Your retina is the layer of nerves at the back of your inner eye that sense light. Like a tiny video camera, your retina transforms images into electrical signals that your optic nerve carries to your brain.
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What is an occluded left vertebral artery? Arteries are the blood vessels that carry oxygen and nutrients to organs. The vertebral arteries are two major arteries that carry oxygen to the brain and spinal cord. There are two vertebral arteries, one right and one left. They begin in the chest and travel up along the sides of the vertebrae, the bony segments of the spine. An occluded vertebral artery means that there is a blockage in one of these arteries.
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Original Articles from the New England Society for Vascular SurgeryCommon carotid artery occlusion with patent internal and external carotid arteries: Diagnosis and surgical management * Abstract. Purpose: Occlusion of the common carotid artery (CCA) is generally associated with occlusion of the ipsilateral internal carotid artery (ICA) and external carotid artery (ECA). Occasionally, however, collateral circulation to the ECA may preserve patency of the ICA via retrograde perfusion through the bulb.bstract. Purpose: Occlusion of the common carotid artery (CCA) is generally associated with occlusion of the ipsilateral internal carotid artery (ICA) and external carotid artery (ECA). Occasionally, however, collateral circulation to the ECA may preserve patency of the ICA via retrograde perfusion through the bulb.
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The changing face of Ariana Grande: How she transformed from sweet-faced kid to diva pop star (with a 'bad attitude' to match) Transformation: In 2008, Ariana Grande was just a young girl who wanted to sing and now, six years later, is one of the biggest pop stars in the world. After wowing people first on cruise ships then Broadway, the Florida-born shot to stardom as a barefaced sweetheart on hot Nickelodeon show Victorious in 2009.
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âChronic Total Occlusion Intervention ​Chronic Total Occlusion Intervention. Chronic total occlusion (CTO) is a complete blockage of a coronary artery that has been in place for 30 days or longer. CTOs are very common, occurring in 15 to 20 percent of patients with significant coronary artery disease. The condition can cause severe angina (chest pain) and lead to a lower quality of life.
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Arterial Occlusive Disease Narrowing of the arteries decreases the blood supply to the muscles and tissues in the surrounding area, resulting in poor circulation. Lower extremity arterial occlusive disease (occurring in the legs and feet) is often present in conjunction with other conditions, such as carotid artery disease and heart disease.
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Aortoiliac Occlusive Disease You are here. Aortoiliac Occlusive Disease. Aortoiliac occlusive disease is the blockage of the aorta, the main blood vessel in your body, or the iliac arteries. The iliac arteries are the branches that your aorta divides into around the level of the belly button to provide blood to your legs and the organs in your pelvis.
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Carotid Artery Disease: Causes, Symptoms, Tests, and Treatment Carotid artery disease is also called carotid artery stenosis. The term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque. Carotid artery occlusion refers to complete blockage of the artery.
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Peripheral Arterial Disease This narrowing or occlusion is called stenosis, and can occur in the arteries in the (the legs), or more infrequently in the arms. When it occurs in the legs and feet, it causes a disease known as lower extremity arterial occlusive disease.
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arterial occlusive disease Arterial occlusive disease, and in particular peripheral arterial occlusive disease (PAOD), is characterized by reduced blood flow through the major blood vessels of the body because of an obstruction or narrowing of the lumen of the aorta and its major branches.
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- Several factors combine to bring on an occlusion. The usual situation is that the blood flow in a retinal vein is slowed down and a clot forms. The clot prevents blood from flowing freely. The blood is back logged and spills into the retina. The most common reason for slowed venous blood flow is a hardened artery (arteriosclerosis).
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- Peripheral embolism redirects here. See also Peripheral vascular disease. Arterial embolism is a sudden interruption of blood flow to an organ or body part due to an embolus adhering to the wall of an artery blocking the flow of blood, the major type of embolus being a blood clot (thromboembolism).
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Retinal Vein Occlusion Arteries carry blood from the heart to other parts of the body, and veins carry the blood back to the heart. A blockage in an artery or vein is called an occlusion or stroke.The eye is often compared to a camera. The front of the eye contains a lens that focuses images on the inside of the back of the eye.rteries carry blood from the heart to other parts of the body, and veins carry the blood back to the heart. A blockage in an artery or vein is called an occlusion or stroke. The eye is often compared to a camera.
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Carotid stenosis  (carotid artery disease) Carotid stenosis is a narrowing of the carotid arteries, the two major arteries that carry oxygen-rich blood from the heart to the brain. Also called carotid artery disease, carotid stenosis is caused by a buildup of plaque (atherosclerosis) inside the artery wall that reduces blood flow to the brain. Treatment aims to reduce the risk of stroke by controlling or removing plaque buildup and preventing blood clots.
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Subclavian Steal Syndrome The term subclavian steal describes retrograde blood flow in the vertebral artery associated with proximal ipsilateral subclavian artery stenosis or occlusion, usually in the setting of subclavian artery occlusion or stenosis proximal to the origin of the vertebral artery.lthough retrograde blood flow in the vertebral artery is usually noted angiographically in association with proximal ipsilateral subclavian artery occlusion, subclavian steal may also occur with hemodynamically significant subclavian artery stenosis (see the image below). Irregular proximal subclavian stenosis.
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Encyclopedia Adobe's PhotoShop is the most widely recognized image editing program worldwide, and its Illustrator drawing program is another venerable application. In 2005, Adobe acquired Macromedia, adding Web-based authoring and multimedia tools to the product line (see Macromedia).
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arteriosclerosis obliterans arteriosclerosis obliterans. a gradual narrowing of the arteries with thrombosis and degeneration of the intima. The condition may lead to complete occlusion of an artery and subsequent gangrene.
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Carotid Artery Disease: Causes, Symptoms, Tests, and Treatment In this article. Carotid artery disease is also called carotid artery stenosis. The term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque.Carotid artery occlusion refers to complete blockage of the artery.he term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque. Carotid artery occlusion refers to complete blockage of the artery.
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Retinal Artery Occlusion The blood vessels that feed the retina run like the branches of a tree. An abrupt blockage of blood flow (ischemia) halts proper retinal functioning, which results in visual impairment. Depending on the extent and location of the retina affected, the loss of vision may be relatively mild or very severe.